SANS 12215-6-2009 Small craft - Hull construction and scantlings Part 6 Structural arrangements and details《小艇 船体结构和尺寸 第6部分：构造排列和详细资料》.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22617-6 SANS 12215-6:2009Edition 1ISO 12215-6:2008Edition 1SOUTH AFRICAN NATIONAL STANDARD Small craft Hull construction and scantlings Pa

4、rt 6: Structural arrangements and details This national standard is the identical implementation of ISO 12215-6:2008 and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0

5、001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 12215-6:2009 Edition 1 ISO 12215-6:2008 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 188, Small craft, in accordance with procedures of t

6、he SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in September 2009. Reference numberISO 12215-6:2008(E)ISO 2008INTERNATIONAL STANDARD ISO12215-6First edition2008-04-01Small craft Hull construction and scantlings Part 6: Structural arra

7、ngements and details Petits navires Construction de coques et chantillonnages Partie 6: Dispositions et dtails de construction SANS 12215-6:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 12215-6:2008(E) PDF disclaimer This PDF file m

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12、try of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2008 All rights reservedSANS 12215-6:2009This s tandard may only be used and printed by approved subscript

13、ion and freemailing clients of the SABS .ISO 12215-6:2008(E) ISO 2008 All rights reserved iiiContents Page Foreword. v Introduction . vi 1 Scope 1 2 Normative references 1 3 Terms and definitions .1 4 Symbols 3 5 General4 6 Structural arrangement .4 6.1 Stiffening 4 6.2 Hull girder strength7 6.3 Loa

14、d transfer7 6.4 Determination of stiffener spans11 6.5 Window mullions .13 6.6 Sailboat mast support .14 7 Specific structural details for FRP construction 14 7.1 Local reinforcement 14 7.2 Bonding 16 7.3 Major joints.21 7.4 Laminate transition25 7.5 Sandwich construction .25 7.6 Attachment of fitti

15、ngs25 7.7 Engine seatings and girders.25 7.8 Hull drainage 28 8 Specific structural details for metal construction28 8.1 Design details.28 8.2 End connections28 8.3 Increased hull plating28 8.4 Protective keel28 8.5 Hull drainage 29 8.6 Machinery spaces29 8.7 Good practice welding standards29 8.8 Go

16、od practice for riveting or adhesive bonding 29 9 Good practice on laminated wood.30 9.1 Edge sealing.30 9.2 Plywood orientation.30 9.3 Local scantlings.30 9.4 Alternative criteria .31 10 Consideration of other loads31 11 Other structural components .31 11.1 General31 11.2 Rudder structure and conne

17、ction31 11.3 Keel attachment .32 11.4 Introduction and distribution of rigging loads .32 11.5 Other structural components not considered in other parts 32 Annex A (normative) Structural arrangements for category C and D boats.33 SANS 12215-6:2009This s tandard may only be used and printed by approve

18、d subscription and freemailing clients of the SABS .ISO 12215-6:2008(E) iv ISO 2008 All rights reservedAnnex B (informative) Determination of shear stresses within a stiffener with glued or riveted joints 35 Annex C (informative) Good practice welding procedure 41 Annex D (informative) Longitudinal

19、strength analysis . 47 Bibliography . 52 SANS 12215-6:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 12215-6:2008(E) ISO 2008 All rights reserved vForeword ISO (the International Organization for Standardization) is a worldwide feder

20、ation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that commit

21、tee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordanc

22、e with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires a

23、pproval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 12215-6 was prepared by Technical C

24、ommittee ISO/TC 188, Small craft. ISO 12215 consists of the following parts, under the general title Small craft Hull construction and scantlings: Part 1: Materials: Thermosetting resins, glass-fibre reinforcement, reference laminate Part 2: Materials: Core materials for sandwich construction, embed

25、ded materials Part 3: Materials: Steel, aluminium alloys, wood, other materials Part 4: Workshop and manufacturing Part 5: Design pressures for monohulls, design stresses, scantlings determination Part 6: Structural arrangements and details Part 7: Scantling determination of multihulls Part 8: Rudde

26、rs Part 9: Sailing boats Appendages and rig attachments SANS 12215-6:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 12215-6:2008(E) vi ISO 2008 All rights reservedIntroduction The underlying reason for preparing this part of ISO 1221

27、5 is that standards and recommended practices for loads on the hull and the dimensioning of small craft differ considerably, thus limiting the general worldwide acceptability of boats. The objective of this part of ISO 12215 is to achieve an overall structural strength that ensures the watertight an

28、d weathertight integrity of the craft. This part of ISO 12215 is considered to have been developed with the application of current practice and sound engineering principles. Considering future development in technology and boat types, as well as small craft currently outside the scope of this part o

29、f ISO 12215, and provided that methods supported by appropriate technology exist, consideration may be given to their use so long as equivalent strength to this part of ISO 12215 is achieved. Dimensioning in accordance with this part of ISO 12215 is regarded as reflecting current practice, provided

30、that the craft is correctly handled in the sense of good seamanship and that it is equipped and operated at a speed appropriate to the prevailing sea state. SANS 12215-6:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDA

31、RD ISO 12215-6:2008(E) ISO 2008 All rights reserved 1Small craft Hull construction and scantlings Part 6: Structural arrangements and details 1 Scope This part of ISO 12215 concerns structural details and structural components not explicitly included in ISO 12215-5, ISO 12215-7, ISO 12215-8 and ISO

32、12215-9. It applies to monohull and multihull small craft constructed from fibre reinforced plastics (FRP), aluminium or steel alloys, wood or other suitable boat building material, with a hull length, in accordance with ISO 8666, of up to 24 m. This part of ISO 12215 fulfils two functions. Firstly,

33、 it supports ISO 12215-5 by providing further explanations and calculation procedures and formulae. Secondly, it gives a number of examples of arrangements and structural details which illustrate principles of good practice. These principles provide a standard against which alternative arrangements

34、and structural details can be benchmarked, using the equivalence criteria specified in this part of ISO 12215. NOTE Scantlings derived from this part of ISO 12215 are primarily intended to apply to recreational craft including recreational charter vessels and might not be suitable for performance ra

35、cing craft. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 8666, Smal

36、l craft Principal data ISO 12215-5:2008, Small craft Hull construction and scantlings Part 5: Design pressures for monohulls, design stresses, scantlings determination ISO 12215-7, Small craft Hull construction and scantlings Part 7: Scantling determination of multihulls ISO 12215-8, Small craft Hul

37、l construction and scantlings Part 8: Rudders ISO 12215-9, Small craft Hull construction and scantlings Part 9: Appendages and rig attachment ISO 12216, Small craft Windows, portlights, hatches, deadlights and doors Strength and watertightness requirements 3 Terms and definitions For the purposes of

38、 this document, the following terms and definitions apply. 3.1 loaded displacement mass mLDCmass of the craft, including all appendages, when in the fully-loaded ready-for-use condition, as defined in ISO 8666 SANS 12215-6:2009This s tandard may only be used and printed by approved subscription and

39、freemailing clients of the SABS .ISO 12215-6:2008(E) 2 ISO 2008 All rights reserved3.2 sailing craft craft for which the primary means of propulsion is by wind power, and for which AS 0,07(mLDC)2/3where ASis the total profile area of all sails that can be set at one time when sailing closed hauled,

40、as defined in ISO 8666, expressed in m2; mLDCis the loaded displacement, as defined in ISO 8666, expressed in kg. NOTE In this part of ISO 12215, non-sailing craft are referred to as motor craft. 3.3 grid grillage set of transverse stiffeners that intersect a set of longitudinal stiffeners 3.4 secon

41、dary stiffener stiffening element that directly supports the plating NOTE In a stiffener grillage, secondary stiffeners usually correspond to stiffeners having the lower second moment of area, e.g. stringers, frames, partial bulkheads. The spacing of secondary stiffeners generally corresponds to the

42、 shortest unsupported span of the attached plating. In the case of stiffeners with a substantial base width (i.e. top hat stiffeners), the stiffener spacing will be the unsupported panel span plus this base width. 3.5 primary stiffener stiffening element that supports the secondary stiffening elemen

43、t NOTE 1 In a stiffener grillage, primary stiffeners usually correspond to stiffeners which have the higher second moment of area, e.g. structural bulkheads, girders, web frames. The spacing of primary stiffeners generally corresponds to the span of secondary stiffeners. NOTE 2 Some stiffeners, such

44、 as bulkheads, deep girders or web frames, may also contribute to resisting global loads. 3.6 stringer longitudinal stiffener, generally designated a secondary stiffener (3.4), which supports the shell plating 3.7 frame transverse stiffener, generally designated a secondary stiffener (3.4), which su

45、pports the shell plating 3.8 beam transverse stiffener, generally designated a secondary stiffener (3.4), which supports the deck plating 3.9 web frame substantial transverse stiffener, generally designated a primary stiffener (3.5), which supports stringers and less substantial girders and is usual

46、ly connected with substantial deck beams NOTE The spacing of web frames is usually greater than (or some multiple of) the frame or beam spacing. 3.10 floor substantial transverse bottom stiffener, which may be used to link frames and may also be a partial bulkhead NOTE Floors are often used to suppo

47、rt a cabin sole, so the upper edge is generally horizontal. On sailing craft, floors are traditionally used to support ballast keels. SANS 12215-6:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 12215-6:2008(E) ISO 2008 All rights res

48、erved 33.11 girder substantial longitudinal stiffening element, generally designated a primary member, which supports bottom transverse frames or floors, other frames and beams NOTE Bottom girders are sometimes called keelsons. 3.12 bracket stiffening element, usually of triangular shape, used to re

49、inforce the connection of two stiffeners and to reduce their span NOTE Brackets are also used to transmit local loads. 4 Symbols Unless specifically otherwise defined, the symbols and units used in this part of ISO 12215 are given in Table 1. NOTE Symbols and units used only in the annexes are not included in Table 1. Table 1 Symbols Symbol Designation Unit ADDesign area of plating/stiffener mm2b Spacing between stiffeners mm bwWidth of bonding flange mm BHBeam of hull, in accordance with